Shaking-screen.



PAT'ENTED DEG. 17, 1907.

N Wm 0R RC BS G N n APPLIIOATION FILED APR118, 1907v l rnl: nomus PETERSco., wAsmnoran, o. c,

which the eccentric engages.

NIMROD W. L. BROWN, OF THOMASVILLE, ALABAMA.

SHAKING-SGREEN.

Specification of Letters Patent.

Patented Dec. 17, 1907.

Application filed April 18. 1907. fierial No. 368,970.

To all whom it may concern:

Be it known that I, NIMROD W. L. BROWN, citizen of the United States,residing at Thomasville, in the county of Clarke and State of Alabama,have invented new and useful Improvements in Shaking-Screens, of whichthe following is a specification.

The object of this invention is to construct a shaker employed incleaning cotton seed, and various other grains in Which practically alljar is removed, and this is accomplished by a construction that holdsthe various surfaces forming the joints in close fitting order.

In the accompanying drawings, Figure 1 is a side elevation, partly insection of my improved shaker. Fig. 2 is a plan view. Fig. 3 is anisometrical representation of the parts for imparting a reciprocatingmovement to the shaker. Fig. 4 is an isometrical representation of the uper end of the bar with Fig. 5 is an isometrical representation of oneend of the connectin link.

A troug 1 is supported by the floor, within the trough is located aconveyer 2 which is rotated by the pulley 3. Over the trough is locateda sieve 5 which is held suspended by the uprights 26, one located ateach corner of the sieve, and each supporting a link 4, the other endsof the links are connected to the sieve in a pivotal manner. To thefloor is secured a block 6 which supports a bar 7 in a manner to permitit to vibrate. To the bar 7 above the block 6 are secured two blocks 8having their free ends connected by a plate 9 which is held in place bythe bolts 10. Two supports 11 are located one each side of the bar '7and have their upper portion in box form as shown at 12. These boxessupport a shaft 13, to one end of which is secured a pulley 14. Thisshaft extends within the opening bounded by the bar 7, blocks 8 andplate 9, and within this opening is located an eccentric 15 which formsa part of shaft 13.

The upper end of the bar 7 is provided with a central notch 16 extendingin the direction of the length of the bar. To the underface of the sieveframe 5 is secured a cross-bar 17 which is located near the upper end ofthe sieve frame. A link has one end provided with a cross-recess 18,which receives the cross-bar 17, and is secured thereto by bolts passingthrough the holes 19 therein. The other (free) end of the link is formedwith two side notches 20, and the center portion 21 of the link isreduced in thickness in order to make it more elastic. The free end ofthe link is placed in connection with the upper end of the bar 7 by theneck portion 22 thereof resting in the notch 16 of the bar as shown atFig. 3. The side notches 20 receive the projecting portions 23 of thebar. When the shaft 13 is rotated, the eccentric 15 will also rotate,which will impart a back and forth movement to the upper portion of thebar 7. This will reciprocate the link, and as the link connects with thesieve 5, the sieve will be reciprocated. There is a given amount ofelasticity in the bar 7 Which enables this bar to spring a given amountat each end of its stroke, and thus take up part or all of the jar whichwould otherwise occur at each change of movement of the sieve 5, dueespecially to the Weight of this sieve.

Beneath the lower end of the sieve is located a chute 24, which conveysthe larger particles passing off the end of the sieve to a proper p ace.In separating dirt or particles smaller than cotton seed, from cottonseed, the mesh of the sieve is such as to allow such particles to passthrough it, and the cotton seed will pass off the end of the sieve. Thecotton seed is then passed over a sieve having a mesh of a size to allowthe cotton seed to pass through, and all particles or articles largerthan the cotton seed will pass off the end of the sieve, and after thisoperation there Will be three se arations, dirt, cottond seed andparticles arger than cotton see The shaker herein shown and described isespecially used to separate the meats from the hulls, separate foreignarticles from seeds and bolt cotton seed meal.

It is evident that I do not limit my improved shaker to the separationof cotton seed from other particles, as the mesh of the sieve can bearranged to separate starch from the husks and bran of ground grain, andcan be used for the separation of other grains, and separating certainores in various milling processes. The material is fed to the sievethrough the spout 25.

I claim as my invention.

1. The combination of a sieve, means supporting the sieve in a manner topermit it to reci rocate, a vertically arranged bar having its oWer endfixedly held in position, a link forming a connection between the upperportion of the bar and the sieve, and an eccentric located intermediatethe ends of the bar for positively imparting movement to the bar in bothdirections.

2. The combination of a sieve, a verticallyarranged bar having a notchin its upper end and its lower end fixedly held in position, means forimparting movement to the other end of the bar in both directions, and anotched link having its notched end located in the u per end of saidvertical bar, the other end in ored connection with the sieve, and athinner neck portion intermediate its ends.

3. The combination of a sieve, a vertically arranged bar, means forimparting movement to the bar in both directions, and a link having oneend connected with the sieve and 15 my hand in presence of twosubscribing wit- 20 nesses.

NIMROD W. L. BROWN.

Witnesses:

W'. W. DURDEN, J. G. CUNINGHAM.

